參數(shù)資料
型號(hào)： MAX8508ETE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： PWM Step-Down DC-DC Converters with 75m? Bypass FET for WCDMA and cdmaOne Handsets
中文描述： 3.2 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 4 X 4 MM, 0.80 MM HEIGHT, MO-220, TQFN-16
文件頁(yè)數(shù)： 1/12頁(yè)
文件大?。?/td> 382K
代理商： MAX8508ETE
General Description
The MAX8506/MAX8507/MAX8508 integrate a PWM step-
down DC-DC regulator and a 75m
(typ) bypass FET to
power the PA in WCDMA and cdmaOne cell phones.
The supply voltage range is from 2.6V to 5.5V, and the
guaranteed output current is 600mA. One megahertz
PWM switching allows for small external components.
The MAX8506 and MAX8507 are dynamically controlled
to provide varying output voltages from 0.4V to 3.4V. The
MAX8508 is externally programmed for fixed 0.75V to
3.4V output. Digital logic enables a high-power (HP)
bypass mode that connects the output directly to the bat-
tery for all versions. The MAX8506/MAX8507/MAX8508
are designed so the output settles in less than 30μs for a
full-scale change in output voltage and load current.
The MAX8506/MAX8507/MAX8508 are offered in 16-pin
4mm x 4mm thin QFN packages (0.8mm max height).
Applications
WCDMA/NCDMA Cell Phones
Wireless PDAs, Palmtops, and Notebook
Computers
Wireless Modems
Features
Integrated 75m
(typ) Bypass FET
38mV Dropout at 600mA Load
Up to 94% Efficiency
Dynamically Adjustable Output from 0.4V to 3.4V
(MAX8506, MAX8507)
Externally Fixed Output from 0.75V to 3.4V
(MAX8508)
1MHz Fixed-Frequency PWM Switching
600mA Guaranteed Output Current
Shutdown Mode 0.1μA (typ)
16-Pin Thin QFN (4mm x 4mm, 0.8mm max Height)
M
PWM Step-Down DC-DC Converters with 75m
Bypass FET for WCDMA and cdmaOne Handsets
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
19-2918; Rev 1; 1/04
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 Thin QFN
16 Thin QFN
16 Thin QFN
MAX8506
ETE
MAX8507
ETE
MAX8508
ETE
cdmaOne is a trademark of CDMA Development Group.
Pin Configurations appear at end of data sheet.
Typical Application Circuits continued at end of data sheet.
CURRENT-
LIMIT
CONTROL
PWM
DAC
BATTP
LX
OUT
COMP
PGND
GND
REFIN
1MHz
OSC
REF
HP
INPUT
2.6V TO 5.5V
4.7
μ
H
OUTPUT
0.4V TO 3.4V OR V
BATT
4.7
μ
F
0.3
0.4
0.075
BATT
REF
2.2
μ
F
0.22
μ
F
SKIP
SHDN
R
C
*
C
C
*
MAX8506
MAX8507
*
10
15
R
C
(k
)
1500
1000
C
C
(pF)
100
100
C
f
(pF)
MAX8506
MAX8507
C
f
*
Typical Application Circuits (MAX8506/MAX8507)
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MAX8508ETE+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 DC/DC Converter DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX8508ETE-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 DC/DC Converter DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX850CSA 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube
MAX850CSA-T 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube
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